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BCM3431 参数 Datasheet PDF下载

BCM3431图片预览
型号: BCM3431
PDF下载: 下载PDF文件 查看货源
内容描述: ATSC / NTSC / QAM数字有线就绪数字电视接收器 [ATSC/NTSC/QAM DIGITAL CABLE READY DTV RECEIVER]
分类和应用: 电视
文件页数/大小: 2 页 / 133 K
品牌: BOARDCOM [ Broadcom Corporation. ]
 浏览型号BCM3431的Datasheet PDF文件第2页  
BCM3418
PRODUCT
®
Brief
CABLE
O F
BCM3418
B C M 3 4 1 8
CMOS
F E AT U R E S
VoIP
TUNER
B E N E F I T S
S U M M A R Y
applications
Supports 64 - 256 QAM
Input Noise Figure 12 dB
IP3 = 15 dBm (two tone)
SNR 40 dB
CTB, CSO, Xmod all > 50 dB
PLL Step Size 100 KHz
IF AGC 30 dB Range
48-Pin TQFP Package
.5W @ 3.3V
The BCM3418 supports 64- and 256-QAM digital cable
Low cost
Complete TV tuner-on-a-chip – requires no external high
frequency tuned circuits
Simplifies board layout
Single 3.3V supply
Eliminates microphonics
Differential signals for noise immunity
Surface-mount package simplifies manufacturing
Applications
• Cable Modems
• VoIP
BCM3418 Tuner Application Example (Cable Modem)
Diplex
Filter
54-860 MHz
Discrete
LNA
BCM3418
CMOS Tuner
SAW
BCM3300
QAM Rx
QPSK/QAM Tx
MCNS 1.1 MAC
SRAM
SDRAM
FLASH
PA
5-65 MHz
LPF
BCM3310
MIPS CPU
PCI I/F
Control
PCI BUS